Swig和Lua:如何将Lua文件映射到FILE*

const char *filename = luaL_checkstring(L, 1);

const char *mode = luaL_checkstring(L, 2);

FILE *file = fopen(filename, mode);

if (file == NULL) {

    lua_pushnil(L);

    lua_pushstring(L, "Failed to open file");

    return 2;

}

lua_pushlightuserdata(L, file);

return 1;

FILE *file = lua_touserdata(L, 1);

if (file != NULL) {

    fclose(file);

    lua_pushboolean(L, 1);

    return 1;

}

lua_pushboolean(L, 0);

return 1;

FILE *file = lua_touserdata(L, 1);

size_t size = luaL_checkinteger(L, 2);

char buffer[BUFFER_SIZE];

size_t bytes_read = fread(buffer, 1, size, file);

lua_pushlstring(L, buffer, bytes_read);

return 1;

FILE *file = lua_touserdata(L, 1);

size_t size;

const char *data = luaL_checklstring(L, 2, &size);

size_t bytes_written = fwrite(data, 1, size, file);

lua_pushinteger(L, bytes_written);

return 1;

FILE *file = lua_touserdata(L, 1);

long offset = luaL_checkinteger(L, 2);

int origin = luaL_checkinteger(L, 3);

fseek(file, offset, origin);

lua_pushboolean(L, 1);

return 1;

FILE *file = lua_touserdata(L, 1);

long position = ftell(file);

lua_pushinteger(L, position);

return 1;

FILE *file = lua_touserdata(L, 1);

int eof = feof(file);

lua_pushboolean(L, eof);

return 1;

FILE *file = lua_touserdata(L, 1);

int error = ferror(file);

lua_pushboolean(L, error);

return 1;

FILE *file = lua_touserdata(L, 1);

clearerr(file);

lua_pushboolean(L, 1);

return 1;

FILE *file = lua_touserdata(L, 1);

fflush(file);

lua_pushboolean(L, 1);

return 1;

FILE *file = lua_touserdata(L, 1);

int fileno = fileno(file);

lua_pushinteger(L, fileno);

return 1;

FILE *file = lua_touserdata(L, 1);

int isatty = isatty(fileno(file));

lua_pushboolean(L, isatty);

return 1;

FILE *file = lua_touserdata(L, 1);

char *line = NULL;

size_t len = 0;

ssize_t read;

if ((read = getline(&line, &len, file)) != -1) {

    lua_pushlstring(L, line, read);

    free(line);

    return 1;

}

lua_pushnil(L);

return 1;

FILE *file = lua_touserdata(L, 1);

size_t size;

const char *data = luaL_checklstring(L, 2, &size);

int result = fputs(data, file);

lua_pushinteger(L, result);

return 1;

FILE *file = lua_touserdata